<!DOCTYPE html>
<html lang="zh-CN">
    <head>
        <meta charset="UTF-8" />
        <title>02_盒子模型-特点-盒子模型的缝隙</title>
        <style>
            .item {
                /* display: inline-block; */
                float: left;
                width: 100px;
                height: 100px;
                background-color: aqua;
                border:1px solid black
            }
        </style>
    </head>
    <body>
        <div>
            <div class="item">1</div>
            <div class="item">2</div>
            <div class="item">3</div>
        </div>
    </body>
</html>